If you're talking about sealskinz socks here, I suggest going with Goretex socks instead. I own both, I started with the Sealskinz, and they're okay, but as the previous poster said, don't expect to stay terribly dry in them. They will keep you warmer, even when wet.
Look on this (BPL) site for analysis of cold weather footwear, and in particular for the review of Rocky brand Goretex socks. I've become a substantial fan of that approach.
For gloves --- dunno. Sealskinz would be too heavy for me. I'm still searching for the optimal hand-warmth solution. Possumdown sounds good if ever in our lifetimes that stuff is available again. For a shell, I favor a mitten --- warmer, simpler, easier to turn inside out to dry. I bought light rain mittens but my sense is that the durability will be too low. I've got a pair of fairly lightweight mittens from REI, but I've never seen those available again. It seems like most mitten shells are fairly heavy and beefy. I favor a lightweight, quick-to-dry and reasonably durable mitten, often wearing the mitten alone with no liner.
Oops, re-reading original post I see that it is the socks being discussed. Oh well, ignore the rest!